本文通过电测应力、振动测试及有限元计算找出驾驶室的薄弱环节，并在振动试验台上进行疲劳试验验证。
Vulnerable parts in tractor cab are found by using stress measurement, vibration tests and finite element approach, and verified by fatigue tests on vibration test table.
文中介绍了在试验台上的试验情况和数据，并与三牙轮钻头进行了比较，得出了应用该钻头的重要结论。
In this paper, the situation and data in the test on testing table are presented, which are compared with those of three cone bit, obtaining an important result in applying this kind of bit.
该试验台可以改变各输送参数和设备运转条件，还可以变换不同型号的设备，实现在一个试验台上完成多个工况的试验。
Such a test bench not only changes each conveying parameter and working conditions of the equipments, but also makes it possible for equipments with different sizes to be tested on it.
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